On Feb 15, 1:10*am, wrote:
On Feb 14, 5:32*pm, dave wrote:

bpnjensen wrote:

Is it safe, then, to assume that a combination of draws that total
somewhat less than the lower rating would not put undue stress on the
supply? *(FWIW, I'm still thinking the Astron 7/5 amp supply for my ~
2.5 amp max needs, or if I feel unsure, the Astron 12/9). *Might even
throw a muffin fan on the back.

Gentlemen, thanks for all your great help!

Bruce

I run a 12 Watt radio (K3/10), my LDG Z-100 tuner, *and a 45 Watt amp
(Tokyo Hy-Power HL45B) on an Astron SS-12. *The thing never even gets warm.

* * * * From Astron website I conclude: *SS-XX series are switching
power supplies. Great for heavy loads, usually stay cool,but... not
perfect enough for me. *They generate RF,even the better ones. *The
ones that were designed for *the so-called 'TEMPEST' program probably
exist, somewhere. Receivers designed with TEMPEST requirement must be
around as well. Somewhere. Otherwise,there is no readily available
substitute for a regulated linear power supply. This was recognized
long time ago.

I am familiar with the TEMPEST program but not what we're talking
about in this thread - interesting.